10001112202021 has 8 divisors (see below), whose sum is σ = 10115032319064. Its totient is φ = 9887637957120.

The previous prime is 10001112202013. The next prime is 10001112202027. The reversal of 10001112202021 is 12020221110001.

It can be written as a sum of positive squares in 4 ways, for example, as 139087973025 + 9862024228996 = 372945^2 + 3140386^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10001112202021 - 2³ = 10001112202013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10001112201992 and 10001112202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001112202027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111422920 + ... + 111512641.

It is an arithmetic number, because the mean of its divisors is an integer number (1264379039883).

Almost surely, 2^{10001112202021} is an apocalyptic number.

It is an amenable number.

10001112202021 is a deficient number, since it is larger than the sum of its proper divisors (113920117043).

10001112202021 is a wasteful number, since it uses less digits than its factorization.

10001112202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222936071.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10001112202021 its reverse (12020221110001), we get a palindrome (22021333312022).

The spelling of 10001112202021 in words is "ten trillion, one billion, one hundred twelve million, two hundred two thousand, twenty-one".